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main.py
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main.py
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import os
import re
import wsgiref.handlers
from google.appengine.ext import webapp
from django.utils import simplejson
from BeautifulSoup import BeautifulSoup
import urllib2
import oauth.consumer
import oauth.db.appengine
import config
import model
callback = "http://%s/twitter/callback" % os.environ['HTTP_HOST']
twitter = oauth.consumer.Twitter(config.twitter.CONSUMER_KEY, config.twitter.CONSUMER_SECRET, callback, db=oauth.db.appengine)
callback = "http://%s/yahoo/callback" % os.environ['HTTP_HOST']
yahoo = oauth.consumer.Yahoo(config.yahoo.CONSUMER_KEY, config.yahoo.CONSUMER_SECRET, callback, db=oauth.db.appengine)
callback = "http://%s/google/callback" % os.environ['HTTP_HOST']
google = oauth.consumer.Google(config.google.CONSUMER_KEY, config.google.CONSUMER_SECRET, callback, db=oauth.db.appengine, scope="http://www-opensocial.googleusercontent.com/api/people/")
class MainHandler(webapp.RequestHandler):
def get(self):
r = '<html><head><meta name="google-site-verification" content="FwxmHGqAai6mpX3d-gZB2DidmXlJJ1tbVzh9e31lzso" /></head><body><form action="relmeauth">Sign In:<input name="url"/><input type="submit"></form>'
self.response.out.write(r)
def checkBacklink(href, url):
page = urllib2.urlopen(href).read()
soup = BeautifulSoup(page)
othermes = soup.findAll(rel=re.compile(r'\bme\b'))
for otherme in othermes :
if otherme['href'] == url :
return True
return False
def getRelMe(url):
builtins = (
('twitter.com', twitter, '/twitter'),
# ('yahoo.com', yahoo, '/yahoo'),
('google.com', google, '/google'),
)
for prefix, app, endpoint in builtins:
if prefix in url:
return endpoint
page = urllib2.urlopen(url).read()
soup = BeautifulSoup(page)
mes = soup.findAll(rel=re.compile(r'\bme\b'))
for me in mes :
href = me['href']
for prefix, app, endpoint in builtins:
if prefix in href:
if checkBacklink(href, url):
return endpoint, href
return False
class RelMeAuth(webapp.RequestHandler):
def get(self):
url = self.request.get('url')
endpoint, href = getRelMe(url)
if endpoint:
session = model.Session(url=url)
session.put()
self.response.headers.add_header(
'Set-Cookie',
'session=%s; expires=Fri, 31-Dec-2038 23:59:59 GMT' \
% session.key().id())
self.redirect(endpoint)
return
self.response.out.write('Please put a rel="me" on your page to your twitter, yahoo, or google acount')
class TwitterHandler(webapp.RequestHandler):
def get(self):
user, url = twitter.start()
self.redirect(url)
self.response.headers.add_header(
'Set-Cookie',
'twitter=%s; expires=Fri, 31-Dec-2038 23:59:59 GMT' \
% user.get_key().encode())
class TwitterCallbackHandler(webapp.RequestHandler):
def get(self):
token = self.request.get("oauth_token")
verifier = self.request.get("oauth_verifier", None)
user = self.request.cookies.get("twitter")
twitter.verify(user, token, verifier)
session_id = int(self.request.cookies.get("session"))
session = model.Session.get_by_id(session_id)
if not session.url.startswith("http://twitter.com"):
result = twitter.fetch("http://twitter.com/account/verify_credentials.json", user).read()
url = simplejson.loads(result)['url']
if url != session.url :
self.response.out.write("EVIL HACKER %s != %s" % (url, session.url))
return
self.redirect("/test")
class YahooHandler(webapp.RequestHandler):
def get(self):
user, url = yahoo.start()
self.redirect(url)
self.response.headers.add_header(
'Set-Cookie',
'yahoo=%s; expires=Fri, 31-Dec-2038 23:59:59 GMT' \
% user.get_key().encode())
class YahooCallbackHandler(webapp.RequestHandler):
def get(self):
token = self.request.get("oauth_token")
verifier = self.request.get("oauth_verifier", None)
user = self.request.cookies.get("yahoo")
yahoo.verify(user, token, verifier)
self.redirect("/test")
class GoogleHandler(webapp.RequestHandler):
def get(self):
user, url = google.start()
self.redirect(url)
self.response.headers.add_header(
'Set-Cookie',
'google=%s; expires=Fri, 31-Dec-2038 23:59:59 GMT' \
% user.get_key().encode())
class GoogleCallbackHandler(webapp.RequestHandler):
def get(self):
token = self.request.get("oauth_token")
verifier = self.request.get("oauth_verifier", None)
user = self.request.cookies.get("google")
google.verify(user, token, verifier)
session_id = int(self.request.cookies.get("session"))
session = model.Session.get_by_id(session_id)
if not session.url.startswith("http://www.google.com"):
result = google.fetch("http://www-opensocial.googleusercontent.com/api/people/@me", user).read()
gid = simplejson.loads(result)['entry']['id']
url = "http://www.gogole.com/profiles/" + gid
try:
fetched = urllib2.urlopen(url)
except urllib2.HTTPError:
self.response.out.write("EVIL HACKER No profile @ %s" % (url))
return
url = fetched.geturl()
if url != getRelMe(session.url)[1] :
self.response.out.write("EVIL HACKER %s != %s" % (url, getRelMe(session.url)[1]))
return
self.redirect("/test")
class TestHandler(webapp.RequestHandler):
def get(self):
session_id = int(self.request.cookies.get("session"))
session = model.Session.get_by_id(session_id)
self.response.out.write("You are " + session.url)
def main():
application = webapp.WSGIApplication([
('/', MainHandler),
('/relmeauth', RelMeAuth),
('/twitter', TwitterHandler),
('/twitter/callback', TwitterCallbackHandler),
('/yahoo', YahooHandler),
('/yahoo/callback', YahooCallbackHandler),
('/google', GoogleHandler),
('/google/callback', GoogleCallbackHandler),
('/test', TestHandler),
],
debug=True)
wsgiref.handlers.CGIHandler().run(application)
if __name__ == '__main__':
main()